CIA should have found and groomed a general in the Saudi military and then enabled him to stage a coup when Abdullah finally croaked: someone who would let us keep our bases there but also crack down ruthlessly on Saudis funding radical Wahabism and terrorist groups and initiate a campaign to do away with the Sharia and codify rights for women, non-Muslims and other marginalized groups.
1 We don't have any bases anymore.
2 No such person exists
3 We can't get rid of "In God We Trust" on our coins, there's no chance of getting rid of Sharia in Saudi Arabia. Only of a more moderate interpretation.